Gravity coal screen and bin.



NE) BEE-.

S. DTS.

GRAVITY OLL SCREEN APELIGATIQNMLED annum?.

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- irl SPENCER OTIS, 0F CHICAGO,

ES 13E oren,

V CORPORATION 0F MAINE.

GRAVITY COAL SCREEN AND BIN.

.Specification of Letters Patent Patented Fehlt, 191

Application filed July 11, 1907. VSerial No. 383,285

To all whom z' 1f may concern:

Be it known that I, SPENCER Oris, a citizen of the United States, residing at Chicago, in the county of Cook and State oi Illinois, have invented certain new and useful Improvements in Gravity Coal Screens and Bins, of which the following is a specip y in the side walls 11 just above the outer iication. v .Y v

The object ot' my invention is to provide improved means for sorting coal or other material, for temporarily storing the same and discharging it at dierent levels in order that it may be receivedeither through top doors or side doors of box cars, or may be discharged into gondola cars.

The drawing is a t-ransverse sectional ele.- vation vof my improved apparatus.

The structure illustrated is divided into a vertical series of compartments 1, 1', 2, 2

and 3 supported upon suitable framing. The structure is surmounted by a railway track 6, upon which is illustrated in dotted lines a car 5 with drop doors 7, which in the present instance are hinged adjacent the center of the car.. rI`he track 6 extends longitudinally of a hopper 8, the downwardly and inwardly sloping sides ot which are designed to conduct the material discharged from the car to the central opening at the bottom of the hopper. Beneath the hopjper 8 and sloping downwardly toward either side from the center of the opening inr said hopper is a screen 9 supported upon transverse framing secured to the uprights 10.- The screen 9 extends in the present instance about half way from the center of the structure to the outer walls 11 thereof. The remainder of the floor of the upper compartment 1, 1 consists of solidv floor sections 12, which slope downwardly and outwardly from points beneath andslightly inside of the outer edges of the screen 9. In order to prevent material passing from the compartment 1, 1 through the screen 9 from again entering the lower part of said compartment, I provide sloping side walls 13 connecting t-he lower edges of the screen 9 with the upper edges. of the solid iioor sections 12. The next lower compartment 2, 2 is provided with a screen and solid floor section similar to those above de- I scribed in connection with compartment 1,

1.` Beneath the compartment 2 is a compartment 3 provided with a floor which slopes downwardly from the sides toward an outlet chute 14 at the center adapted to discharge the" contents lof the lower compartmentinto a-car' or other vehicle in the longitudina passageway 15 at the base 0f the structure.

The compartments'l, 1 and 2, 2 are provided with outlet doors 1G and 17 located edge ot the floor sections 12. Through these doors thefcontents of the compartments 1, 1 and 2, 2 may be discharged into dumping bins 4, 4 located outside of the main walls 11 of the structure. The solid floor septions 12, 12 ofthe upper compartmentare continued outwardly into the dumping bins in the iorm ot apro-ns. The outer walls 18 .of the dumping bins 4, 4 slope downwardly and inwardly toward the walls of the main structure in the manner illustrated. The solid iioor sections 12 of the compartment 2, 2 are continued outwardly beyond the sido walls 18` forming the bottoms of the bins 4, 4- and aprons 2O which extend beyond the outer walls of saidv bins, for the purpose ot conducting the contents of said bins overithe center of a car. I have shown tracks at either side of the structure and cars in 'dotted outline thereon. The extended portions of the iioor sections 12 of the lower compartment 2, 2 may be hinged, if desired...

4, 4 are provided with doors 21, whereby the contents of said bins may be discharged upon aprons 20. The bottoms of the bins Il, 4" are also provided'with doors 22,where by the contents of the bins may be discharged upon aprons 23, the lower portions 24 of which are hinged to the upper portions. By this means the content-s of the bins 4, 4- may be discharged at a higher or a lower level according to the type of car being loaded or the location of the doors therein.

The screen 9 of the upper compartment 1, 1 may be comparatively coarse, while that ofthe lower compartment 2, 2 may be considerably finer. By this means the coarsest material will be retained in the upper compartment 1, 1 until discharged therefrom through thev doors 16. The material next smallest in size will be retained in the compartment 2, 2 until discharged therefrom through the doors 17, while the finest material will pass through the lower screenin-to the compartment 3. Thelmaterial in the compartments 1,1 and 2, 2 may be kept separate, and may -be sepa`n 'rately discharged throubh the dumping bins the arrangement A above upon either side of the structureat will'.

What I claim is: l. ln an apparatus of the class described, tloors forming a plurality disposed at different levels, the i'loor of each compartment being inclined and provided with al screen, said compartments having outlets at different levels, and separatemeans whereby either compartment may be placed in communication with either4 outlet.,

of compartments 2. In an apparatus of the class described,

van elevated track, a hopper beneath said track, partitions forming a plurality of sorting and storing compartments beneath the hopper, the bottoms of said compartments consisting in part of screens sloping v'downwardly from a line beneath the outlet of said hopper, each of said sorting comp-rtinent's having solid yfloor portions sloping downwardly from a point beneath the screen to the outer .Wall of the compartment, dumping bins at the sides of said sorting compartments, doors controlling communication between said sorting compertinents and said dumpingbins, outlets at` the bottom of said dumping bins, and

aprons'whereby the material in the dump-- 'ing bins may be discharged at different'- levels.

SPENCER OTIS.

Witnesses l GEO. L. WILKINSON, ANNA L. SAVOIE. 

